Construction begins on world’s biggest liquid air battery

Re:Construction begins on world’s biggest liquid air battery by trickstra on Wednesday June 24, 2020 @02:11AM (#23624653)

I believe these ones are not limited by tensile strength: https://interestingengineering.com/concrete-gravity-trains-m.... They are a bit limited by available geography, but far less than say pumped hydro.

[ Parent | on HN ]

Re:Construction begins on world’s biggest liquid air battery by gnramires on Wednesday June 24, 2020 @12:28PM (#23630008)

Indeed! In this case it's the integrity and friction of the soil (of the hill) that's keeping the potential energy contained, and this hill soil is "free".

[ Parent | on HN ]